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Lua i Stíl Chicago (17ú heag.)Esquillo, Natividad Martinez. Conjugal Interaction and Fertility Behavior Among the Filipino Urban Working Class. Quezon City: Insitute of Philippine Culture, Ateneo de Manila University, 1976.
Lua MLA (9ú heag.)Esquillo, Natividad Martinez. Conjugal Interaction and Fertility Behavior Among the Filipino Urban Working Class. Insitute of Philippine Culture, Ateneo de Manila University, 1976.
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